\Header{Initialize.corStruct}{Initialize corStruct Object}
\alias{Initialize.corAR1}{Initialize.corStruct}
\alias{Initialize.corARMA}{Initialize.corStruct}
\alias{Initialize.corCAR1}{Initialize.corStruct}
\alias{Initialize.corCompSymm}{Initialize.corStruct}
\alias{Initialize.corHF}{Initialize.corStruct}
\alias{Initialize.corIdent}{Initialize.corStruct}
\alias{Initialize.corLin}{Initialize.corStruct}
\alias{Initialize.corNatural}{Initialize.corStruct}
\alias{Initialize.corSpatial}{Initialize.corStruct}
\alias{Initialize.corSpher}{Initialize.corStruct}
\alias{Initialize.corSymm}{Initialize.corStruct}
\keyword{models}{Initialize.corStruct}
\begin{Description}\relax
This method initializes \code{object} by evaluating its associated
covariate(s) and grouping factor, if any is present, in \code{data},
calculating various dimensions and constants used by optimization
algorithms involving \code{corStruct} objects (see the appropriate
\code{Dim} method documentation), and assigning initial values for
the coefficients in \code{object}, if none were present.\end{Description}
\begin{Usage}
\begin{verbatim}
## S3 method for class 'corStruct':
Initialize(object, data, ...)
\end{verbatim}
\end{Usage}
\begin{Arguments}
\begin{ldescription}
\item[\code{object}] an object inheriting from class \code{corStruct}
representing a correlation structure.
\item[\code{data}] a data frame in which to evaluate the variables defined in
\code{formula(object)}.
\item[\code{...}] this argument is included to make this method compatible
with the generic.
\end{ldescription}
\end{Arguments}
\begin{Value}
an initialized object with the same class as \code{object}
representing a correlation structure.\end{Value}
\begin{Author}\relax
Jose Pinheiro \email{Jose.Pinheiro@pharma.novartis.com} and Douglas Bates \email{bates@stat.wisc.edu}\end{Author}
\begin{SeeAlso}\relax
\code{\Link{Dim.corStruct}}\end{SeeAlso}
\begin{Examples}
\begin{ExampleCode}
data(Orthodont)
cs1 <- corAR1(form = ~ 1 | Subject)
cs1 <- Initialize(cs1, data = Orthodont)
\end{ExampleCode}
\end{Examples}

